Critical error in jsonencode....?
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So, I think I have found an error in the way matlab's built in jsonencode() function works. If you create a struct with one field of doubles, and a double has a infinity value (inf or -inf) jsonencode will encode this without quotation ("") marks. Therefore if I put this through a JSON validator (https://jsonlint.com/) it fails. I am using JSONLab toolbox in the meantime, however it would be nice to work with the native matlab function. Here is the code for an example:
x(1).a = 'hello'
x(1).b = 12
x(2).a = 'bye'
x(2).b = -inf
example = jsonencode(x)
Which will then output:
[{"a":"hello","b":12},{"a":"bye","b":-Inf}]
Where infact the correct output should be:
[{"a":"hello","b":12},{"a":"bye","b":"-Inf"}]
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Pratik Anand
2017-7-11
1 个投票
It is a documented behavior with MATLAB JSONLab toolbox till version 2017a. With version 2017b, Inf and NaN values will be converted to null as per ECMAScript JSON specification. Thus, you can wait and upgrade to 2017b when it comes out.
Alternatively, I can suggest that you replace -Inf in your code to null manually before json encoding it.
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